Information about us!!!
My name is Alyssa and i love to play softball.
My name is Halie and i love to do track.
My name is Alexis and i love to do cheerleading.
One thing we all have in common is that we all love art. April 6th, 2011
some of our materials are:
Zinc oxide is in plastics, ceramics, glass, cement, and rubber material, lubricants, paints, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, first aid tapes, etc.
April 7th, 2011
Expirement.
we are using 10 mL of water in the graduated cylinder
we are going to pour it into the little test tube
we will put a pinch of the Zinc Oxide in one of the test tubes
we will put a pinch of the Copper II Sulfate in another test tube
we will observe to see if they dissolve in their test tube
Hypothesis: The Zinc oxide will not dissolve but the copper II Sulfate will.
Independent variable: Type of solute
Dependent variable: Wheter or not the solute dissolves in the water.
chart:
Element
Trial1
Average
Copper II Sulfate
3:37
3:37
Zinc Oxide
5:12(never dissolved)
5:12
(never
dissolved)
Obsrvations:
Zinc Oxide is powdery and white.
Copper II Sulfate is like a blue crystal.
When the Zinc Oxide went in and it got fogy and looked like milk.
When the Copper II Sulfate went in it went to the bottom but then it looked like blue gatoraide.
The Zinc Oxide looks like its snowing inside of it.
The Copper II Sulfate solution is transparent.
The Zinc Oxide solutions is opaque and settles into the bottom.
When we filtered the Copper II Sulfate solution all went into the flask.
When we filtered the Zinc Oxide it all got stuck in the funnel and only the water went into the flask.
Expirement April 12,2011
Question: Does the amount of water change the color of the solute
DV:concentration
IV:amount of water
Constant:solute
Paper=1.1grams
1.10.mL of water in a test tube
2.20mL of water in the other test tube
3.3g of solute in each testube
4.mix and observe
observations:the mixture with 10mL is darker than the 20mL. The 20mL is more diluted.
Vocaroo Questions:
What is a solution the contains a large amount of solute?
What is the element that conduct thermal energy well and is shaped easily?
How to separate a mixture of salt, finely ground pepper and pebbles.
April 19, 2011 mystery substance lab:
our substance turned out to be potassium nitrate.
April 27th chemical lab
Calcium Chloride:
CaCl2
harmful to inhale
low toxic
moderat activity
not flamable
BP:1600 degrees celcius
soluble in water
irritates skin(may)
Sodium Bicarbonate
NaHCO3
baking soda
can irritate the eye if eye contact
MP:140 degrees Ferenheit
not flamable
Bromothymol Blue
C27H28Br205s
Flamable
yellow crystals
MP:392-396 degrees Ferenheit
April 29th Chemical lab observations:
Calcium Chloride and water: start temp:21.1 end:31.0 made water foggy
Sodium Bicarbonate and water: start temp:20.1 end:19.2 dissolved in water
All together: start temp:22.6 end:24.8 it bubbled up
Calcium Chloride and Bromothymol Blue: Start temp:20.9 End:26.7 turned light blue
Sodium Bicarbonate and Bromothymol Blue: Start temp:21.3 end:19.2 dissolved
Calcium Chloride, Sodium Bicarbonate and water: start:20.6 End:22.1 opaque water
Calcium Chloride and Sodium Bicarbonate: start temp:none. end temp:24.9 nothing happened
Yellow Lead Lab
Beaker
Testube
Mass
Record Mass
Add chemicals (sodium Iodide and Lead Nitrate)
Mass
Record Mass
Flip over testubes
Mass
Record
Sodium Iodide and Lead Nitrate mixed
Alka-Seltzer lab
Q:How will the mass of the product and reactants compare?
H:The mass of the product will be less than the mass of the reactants
IV:mass of reactant(g)
DV:mass of product(g)
Constant(s): glassware, amount of water(mL)
Procedures: 1.mass of glassware with water and reactant.
2.put reactant in lid and put lid on.
3.observe and record mass.
4.take lid off to see how much gas goes out.
Masses without the cap: Trial 1 :40.81g
Trial 2: 25.51g
Trial 3: 25.68g
Trials
mass of reactant
mass of product
change
in
mass
One
43.73g
43.66g
.07g
Two
30.33g
30.32g
.01g
Three
30.52g
30.52g
0g
average
34.86g
34.83g
.04g
Summary:
Our hypothesis was true for the most pert.
We said the mass would go down and we were right.
The masses for trial 1 and 2 went down but trial 3 stayed the same.
picture of our seltzer in water.
My name is Alyssa and i love to play softball.
My name is Halie and i love to do track.
My name is Alexis and i love to do cheerleading.
One thing we all have in common is that we all love art.
April 6th, 2011
some of our materials are:
Are these harmful?
Topic Link
Zinc oxide is in plastics, ceramics, glass, cement, and rubber material, lubricants, paints, ointments, adhesives, sealants, pigments, foods, batteries, ferrites, fire retardants, first aid tapes, etc.
April 7th, 2011
Expirement.
Hypothesis: The Zinc oxide will not dissolve but the copper II Sulfate will.
Independent variable: Type of solute
Dependent variable: Wheter or not the solute dissolves in the water.
chart:
(never
dissolved)
Expirement April 12,2011
Question: Does the amount of water change the color of the solute
DV:concentration
IV:amount of water
Constant:solute
Paper=1.1grams
1.10.mL of water in a test tube
2.20mL of water in the other test tube
3.3g of solute in each testube
4.mix and observe
observations:the mixture with 10mL is darker than the 20mL. The 20mL is more diluted.
Vocaroo Questions:
What is a solution the contains a large amount of solute?
What is the element that conduct thermal energy well and is shaped easily?
How to separate a mixture of salt, finely ground pepper and pebbles.
April 19, 2011
mystery substance lab:
our substance turned out to be potassium nitrate.
April 27th chemical lab
Calcium Chloride:
CaCl2
- harmful to inhale
- low toxic
- moderat activity
- not flamable
- BP:1600 degrees celcius
- soluble in water
- irritates skin(may)
Sodium BicarbonateNaHCO3
- baking soda
- can irritate the eye if eye contact
- MP:140 degrees Ferenheit
- not flamable
Bromothymol BlueC27H28Br205s
April 29th Chemical lab observations:
Calcium Chloride and water: start temp:21.1 end:31.0 made water foggy
Sodium Bicarbonate and water: start temp:20.1 end:19.2 dissolved in water
All together: start temp:22.6 end:24.8 it bubbled up
Calcium Chloride and Bromothymol Blue: Start temp:20.9 End:26.7 turned light blue
Sodium Bicarbonate and Bromothymol Blue: Start temp:21.3 end:19.2 dissolved
Calcium Chloride, Sodium Bicarbonate and water: start:20.6 End:22.1 opaque water
Calcium Chloride and Sodium Bicarbonate: start temp:none. end temp:24.9 nothing happened
Yellow Lead Lab
Sodium Iodide and Lead Nitrate mixed
Alka-Seltzer lab
Q:How will the mass of the product and reactants compare?
H:The mass of the product will be less than the mass of the reactants
IV:mass of reactant(g)
DV:mass of product(g)
Constant(s): glassware, amount of water(mL)
Procedures: 1.mass of glassware with water and reactant.
2.put reactant in lid and put lid on.
3.observe and record mass.
4.take lid off to see how much gas goes out.
Masses without the cap: Trial 1 :40.81g
Trial 2: 25.51g
Trial 3: 25.68g
in
mass
Our hypothesis was true for the most pert.
We said the mass would go down and we were right.
The masses for trial 1 and 2 went down but trial 3 stayed the same.
picture of our seltzer in water.